Blackwattle Bay Marine is a commercial marina facility on Blackwattle Bay in Sydney's inner harbour, near Pyrmont and Glebe.

The purpose-built, 22-berth marina was developed to serve Sydney's charter vessel fleet, accommodating boats ranging from 8 to 40 metres in length. Each berth is equipped with power and water connections, and the facility includes a sewage pump-out station.

A public boardwalk provides waterfront access alongside the marina, forming part of the broader Blackwattle Bay walk. The sheltered, calm waters of the bay also make it a popular anchorage for visiting vessels, with several designated anchoring areas nearby.

The location offers convenient access to Sydney's CBD, the iconic Sydney Fish Market, and the foreshore parklands beneath the Anzac Bridge.